Thoughts on JRiver Media Center? Anyone using it?

I still use JRiver controlled with the JRemote app. Works pretty good for my needs so far. I may eventually give Roon a try.

My biggest gripe with JRiver at the moment is that it doesn't integrate Tidal or Qobuz. Not sure how it is handled in Roon, but it seems that I can play my Tidal library from within Roon.

I still rely on JRiver although I occasionally use others.  I do renew it but it is not necessary.

windows media player has good sound.

I too still use JRiver. Great for my large catalog of WAV, CDA, FLAC, HDCD, DSD, DSF. UPDATED frequently and not very expensive. A+!

Both Tidal and Qobuz can be played inside Roon, I feel that Qobuz sound a bit better than Tidal, but Tidal’s integration with Roon is a little bit better.